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    <title>Document</title>
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            top: 50%;
            left: 50%;
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        .card {
            cursor: pointer;
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            height: 100%;
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            width: 96%;
            height: 96%;
            margin: auto auto;
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            transition: transform 0.6s linear;
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        .front {
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            background-repeat: no-repeat;
            background-size: 100% 100%;
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        /* .front img {
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        .front {
            transform: perspective(600px) rotateY(0deg);
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        .back {
            background: #f1f1f1;
            transform: perspective(600px) rotateY(180deg);
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            text-align: center;
            width: 100%;
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        .sm {
            margin: 20px 0;
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        .sm a {
            display: inline-flex;
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            transition: 0.4s;
            border-radius: 50%;
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        .sm a:hover {
            background: #2c3e50;
            color: white;
        }
        
        .card:hover>.front {
            transform: perspective(600px) rotateY(-180deg);
        }
        
        .card:hover>.back {
            transform: perspective(600px) rotateY(0deg);
        }
        
        .biaoqian {
            font-size: 10px;
            overflow: hidden;
            width: 90%;
            margin: 0 auto
        }
        
        .biaoqian div {
            width: 70px;
            border: 1px solid #999999;
            border-radius: 15px;
            float: left;
            margin-left: 10px;
            margin-bottom: 10px;
        }
        
        .bj_top {
            height: 60px;
            background-color: green;
            margin-bottom: 10px;
        }
        
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            /* 距离上面的绿条的高度 */
            /* margin-top: -40px; */
            width: 100px;
            height: 100px;
            border-radius: 50%;
            z-index: 1
        }
        
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            margin-top: 10px;
            text-align: justify;
            text-indent: 25px;
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            text-align: center;
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        .row {
            margin-right: 0;
        }
        
        .row ul {
            list-style: none;
        }
        
        .row ul li {
            margin: 10px;
            float: left;
            width: 33%;
            height: 300px;
            width: 300px;
            position: relative;
        }
        
        @media (max-width: 768px) {
            .row ul li {
                width: 100%;
                height: 450px;
            }
        }
        
        @media (min-width: 768px) {
            .row ul li {
                height: 250px;
            }
        }
        
        @media (min-width: 992px) {
            .row ul li {
                height: 350px;
            }
        }
    </style>
    <script>
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</head>

<body>
    <div class="page-header">
        <h2>城市借光者</h2>
        <p>每位验客都是一个行走的旅行超人</p>
    </div>
    <div class="container" style="margin-top: 40px;">
        <div class="row">
            <ul>
                <li>
                    <!-- 翻转 -->
                    <div class="card middle">
                        <div class="front">
                            <!-- <img src="../imgs/dy_wzx02.jpg" alt="" /> -->
                        </div>
                        <div class="back">
                            <div class="bj_top">

                            </div>
                            <div class="back-content middle">

                                <img class="hbj" src="../imgs/dy_wzx02.jpg" alt="" />
                                <h2>name</h2>
                                <div class="biaoqian">
                                    <div>
                                        美食的达人
                                    </div>
                                    <div>
                                        美食达人
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                </div>
                                <p class="mytext">心指向aha hah dfhai v</p>

                            </div>
                        </div>
                    </div>
                    <!-- 反转end -->
                </li>
                <li>
                    <!-- 翻转 -->
                    <div class="card middle">
                        <div class="front">
                            <!-- <img src="../imgs/dy_wzx02.jpg" alt="" /> -->
                        </div>
                        <div class="back">
                            <div class="bj_top">

                            </div>
                            <div class="back-content middle">

                                <img class="hbj" src="../imgs/dy_wzx02.jpg" alt="" />
                                <h2>name</h2>
                                <div class="biaoqian">
                                    <div>
                                        美食的达人
                                    </div>
                                    <div>
                                        美食达人
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                </div>
                                <p class="mytext">心指向aha hah dfhai v</p>

                            </div>
                        </div>
                    </div>
                    <!-- 反转end -->
                </li>
                <li>
                    <!-- 翻转 -->
                    <div class="card middle">
                        <div class="front">
                            <!-- <img src="../imgs/dy_wzx02.jpg" alt="" /> -->
                        </div>
                        <div class="back">
                            <div class="bj_top">

                            </div>
                            <div class="back-content middle">

                                <img class="hbj" src="../imgs/dy_wzx02.jpg" alt="" />
                                <h2>name</h2>
                                <div class="biaoqian">
                                    <div>
                                        美食的达人
                                    </div>
                                    <div>
                                        美食达人
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                </div>
                                <p class="mytext">心指向aha hah dfhai v</p>

                            </div>
                        </div>
                    </div>
                    <!-- 反转end -->
                </li>
            </ul>
            <ul>
                <li>
                    <!-- 翻转 -->
                    <div class="card middle">
                        <div class="front">
                            <!-- <img src="../imgs/dy_wzx02.jpg" alt="" /> -->
                        </div>
                        <div class="back">
                            <div class="bj_top">

                            </div>
                            <div class="back-content middle">

                                <img class="hbj" src="../imgs/dy_wzx02.jpg" alt="" />
                                <h2>name</h2>
                                <div class="biaoqian">
                                    <div>
                                        美食的达人
                                    </div>
                                    <div>
                                        美食达人
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                </div>
                                <p class="mytext">心指向aha hah dfhai v</p>

                            </div>
                        </div>
                    </div>
                    <!-- 反转end -->
                </li>
                <li>
                    <!-- 翻转 -->
                    <div class="card middle">
                        <div class="front">
                            <!-- <img src="../imgs/dy_wzx02.jpg" alt="" /> -->
                        </div>
                        <div class="back">
                            <div class="bj_top">

                            </div>
                            <div class="back-content middle">

                                <img class="hbj" src="../imgs/dy_wzx02.jpg" alt="" />
                                <h2>name</h2>
                                <div class="biaoqian">
                                    <div>
                                        美食的达人
                                    </div>
                                    <div>
                                        美食达人
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                </div>
                                <p class="mytext">心指向aha hah dfhai v</p>

                            </div>
                        </div>
                    </div>
                    <!-- 反转end -->
                </li>
                <li>
                    <!-- 翻转 -->
                    <div class="card middle">
                        <div class="front">
                            <!-- <img src="../imgs/dy_wzx02.jpg" alt="" /> -->
                        </div>
                        <div class="back">
                            <div class="bj_top">

                            </div>
                            <div class="back-content middle">

                                <img class="hbj" src="../imgs/dy_wzx02.jpg" alt="" />
                                <h2>name</h2>
                                <div class="biaoqian">
                                    <div>
                                        美食的达人
                                    </div>
                                    <div>
                                        美食达人
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                    <div>
                                        明星
                                    </div>
                                </div>
                                <p class="mytext">心指向aha hah dfhai v</p>

                            </div>
                        </div>
                    </div>
                    <!-- 反转end -->
                </li>
            </ul>







        </div>

    </div>






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